[Bug 1050940] Re: Ubiquity fails creating a correct Windows dualboot on EFI computers (grub-pc <-> grub-efi)

[Ubuntu QA Website]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1050940

** Tags added: iso-testing

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Title:
  Ubiquity fails creating a correct Windows dualboot on EFI computers
  (grub-pc <-> grub-efi)

Status in ubiquity package in Ubuntu:
  Triaged

Bug description:
  Currently, Ubiquity sometimes fails creating a correct Windows dualboot when:
  - either it installs Ubuntu in EFI mode when Windows is installed in Legacy mode ( examples: Bug #908109 , Bug #959446 , Bug #956412
  http://ubuntuforums.org/showthread.php?p=12238420#post12238420 )
  - or it installs Ubuntu in Legacy (not-EFI) mode when Windows is installed in EFI mode. ( example: http://ubuntuforums.org/showpost.php?p=12246811&postcount=6 )

  In order to create a correct dualboot, Ubiquity should always install
  Ubuntu in the same mode as Windows.

  This could be done by choosing between grub-efi and grub-pc based on
  the presence of an existing ESP when performing a side-by-side
  install, instead of whether the cd is booted in efi mode or not.

  *************** WORKAROUND: using Boot-Repair to convert Ubuntu in the same mode as Windows.
  See https://help.ubuntu.com/community/UEFI

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